For anyone else who might be planning to DIY retrofit an electric drop down tow hitch, I have just done this, but with a brand new TRM module from Volvo because I could not find one used. It will not work, despite updating the profile and changing the relevant config options in Orbit. The tow hitch button does not light up and so the hitch cannot be deployed. When the car is just started a fault message stating trailer system service required (or something to that effect) briefly shows on the dash, then disappears. It has been several days and has not started working. I can read a few details like serial no. from the TRM ECU in orbit, but most report an error.
It looks like a new module needs some kind of software installed before it can be used at all. Whereas used modules must already have this, and so do not have the same issue. I am hoping there might be a file available that could be flashed to my trm module with Orbit, can anyone help with this?
Thanks
It looks like a new module needs some kind of software installed before it can be used at all. Whereas used modules must already have this, and so do not have the same issue. I am hoping there might be a file available that could be flashed to my trm module with Orbit, can anyone help with this?
Thanks
18/19 XC60 T5 R-Line Pro
Enabled with Orbit: ACC/PA/Corner Speed Assist, Smartphone Integration, Start Stop Memory